Alert for inhabitants of Warsaw area (5)

I believe the answer is:

aware

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'alert for inhabitants' is the definition.
'aware' can be an answer for 'alert' (I've seen this before). I am not sure about the 'for inhabitants' bit.

'of warsaw area' is the wordplay.
'of' says the answer is hidden in the clue.
'AWARE' is hidden within 'warsaw area'.

Can you help me to learn more?

(Other definitions for aware that I've seen before include "fly" , "Having knowledge of, informed" , "Acquainted with or conscious of" , "Bearing in mind" , "Conscious, sentient" .)

I've seen this clue in the Sydney Morning Herald.

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